10
AssignmentMultiple Select

Earth's Interior

Question 10 • Earth and Space A 26-27

Why are the properties of the asthenosphere important? Check all that apply.

Answer
A
The asthenosphere keeps Earth’s crust from getting too hot.
B
Earth’s plates float on the denser asthenosphere.
C
The depth of the asthenosphere keeps pressure on Earth’s core.
D
The asthenosphere allows Earth’s crust to move.
E
The asthenosphere creates Earth’s magnetic field.

Explanation

Earth’s plates rest on the denser, slowly flowing asthenosphere, so they can move over it. Its soft, plastic properties allow Earth’s crust and plates to shift. It does not keep the crust cool or create Earth’s magnetic field, and its depth is not what keeps pressure on the core.

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